Home / 15,972.75-22,042.41-8,899.20

Finding the Fourth Proportional to 15,972.75, 22,042.41 and 8,899.20

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Solution

The fourth proportional to 15,972.75, 22,042.41 and 8,899.20 is: 12,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.75 : 22,042.41 = 8,899.20 : x
  2. Step 2: Convert to fraction form
    15,972.75/22,042.41 = 8,899.20/x
  3. Step 3: Cross multiply
    15,972.75x = 22,042.41 × 8,899.20
  4. Step 4: Simplify right side
    15,972.75x = 196,159,815.07
  5. Step 5: Solve for x
    x = 196,159,815.07/15,972.75
  6. Step 6: Final answer
    x = 12,280.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.